Assessment of Alternative Scenarios for CO<sub>2</sub> Reduction Potential in the Residential Building Sector
2017
Jeong, Young-Sun
The South Korean government announced its goals of reducing the country’s CO<inf>2</inf> emissions by up to 30% below the business as usual (BAU) projections by 2020 in 2009 and 37% below BAU projections by 2030 in 2015. This paper explores the potential energy savings and reduction in CO<inf>2</inf> emissions offered by residential building energy efficiency policies and plans in South Korea. The current and future energy consumption and CO<inf>2</inf> emissions in the residential building were estimated using an energy–environment model from 2010 to 2030. The business as usual scenario is based on the energy consumption characteristic of residential buildings using the trends related to socio-economic prospects and the number of dwellings. The alternative scenarios took into account energy efficiency for new residential buildings (scenario I), refurbishment of existing residential buildings (scenario II), use of highly efficient boilers (scenario III), and use of a solar thermal energy system (scenario IV). The results show that energy consumption in the residential building sector will increase by 33% between 2007 and 2030 in the BAU scenario. Maximum reduction in CO<inf>2</inf> emissions in the residential building sector of South Korea was observed by 2030 in scenario I. In each alternative scenario analysis, CO<inf>2</inf> emissions were 12.9% lower than in the business as usual scenario by the year 2030.
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